Little Bryony, passed away last Thursday after undergoing gruelling treatment and the amputation of her left arm in her fight against proximal epithelioid sarcoma.

The eleven year old who always smiled through her pain, had befriended both Nicholas and Sam Callahan after watching them on X Factor and had spent the last few months of her life socialising and attending gigs with celebrities, at events organised by charity worker Les Hoey.

Nicholas who admitted he was broken hearted at hearing news of her passing as she awaited potentially life saving treatment in London, paid tribute to Bryony during his appearance at the famed venue.

Dedicating his song Arms of An Angel to her, Nicholas told thousands of fans at Wembley: “If you’ve been on my Facebook and Twitter of late you’ll find out that someone really close to my family passed away. Bryony, this song is for you.”

Nicholas, who found it hard to sign the song about his late friend told the Daily Record of the last time he saw Bryony as she lay dying on her hospital bed at Yorkhill.

He said: “It’s been hard. The last time I saw Bryony she was really thin. I came home last weekend to do a show in The Hydro and mum phoned me on the Tuesday night to say Bryony was in hospital and was really ill.

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I organised a hospital visit on Thursday to see some of the children and before I went the doctor told me she was really ill compared to the last time I saw her when she stayed overnight with her sisters at my family home.

I walked into the room and thought ‘goodness me’. She looked really ill lying in bed, just sleeping. It was really sad because the last time she was jumping up and down on bed playing hide and seek in my house. It’s such a shame. She was only eleven.”

Nicholas befriended Bryony and her family after charity worker Les Hoey introduced her to him.

Nicholas said: “Les told me Bryony was a massive fan and her dream was to meet to meet me. When I came home to sing at the Scotland USA game I met her there with her sister, and mum and then my mum added her mum on facebook.

I got her at ticket to one of the X Factor shows in London and our families started to get close. She came to my night at the Garage club and she stayed at my house overnight and her mum came for dinner. It felt like I’d known her forever. Before I saw her in that hospital bed she was her usual cheeky self.”

Nicholas and his family haven now been asked if they will play Arms of An Angel at Bryony’s funeral on Thursday.

Bryony’s mum Helen Marshall told her facebook friends: “Thanks Nicholas an amazin tribute from an amazin wee guy for ma beautiful girl xxxxxx A juz cannae even take any of this in but am so grateful to everyone for everything esp the McDonald family xxxxxx”